#include <my_head.h>
pthread_cond_t cond;

pthread_mutex_t lock;

int count = 0;

void *task_func_1(void *arg){
    while(1){
        sleep(10);
        printf("我是生产者线程 [%ld] 生产了一个发动机\n", pthread_self());
        pthread_mutex_lock(&lock); 
        pthread_cond_signal(&cond); 
        pthread_mutex_unlock(&lock); 
    }
}

void *task_func_2(void *arg){
    while(1){
        pthread_mutex_lock(&lock);
        printf("我是消费者线程 [%ld] 完成了前置的组装任务 正在等发动机产生\n", pthread_self());
        pthread_cond_wait(&cond, &lock); 
        printf("我是消费者线程 [%ld] 获取了发动机 完成后续的组装任务\n", pthread_self());
        pthread_mutex_unlock(&lock); 
    }
}

int main(int argc, const char *argv[]){
    pthread_cond_init(&cond, NULL);
    pthread_mutex_init(&lock, NULL);
    pthread_t tid1, tid2;
    int ret = 0;
    if(0 != (ret = pthread_create(&tid1, NULL, task_func_1, NULL))){
        printf("pthread_create error : [%d] [%s]\n", ret, strerror(ret));
        exit(EXIT_FAILURE);
    }
    if(0 != (ret = pthread_create(&tid2, NULL, task_func_2, NULL))){
        printf("pthread_create error : [%d] [%s]\n", ret, strerror(ret));
        exit(EXIT_FAILURE);
    }
    pthread_join(tid1, NULL);
    pthread_join(tid2, NULL);
    pthread_cond_destroy(&cond);
    pthread_mutex_destroy(&lock);
    return 0;
}